FT IR Spectroscopy
The sequence of amino acids in proteins can be determined by means of

identification of the -COOH terminal amino acids
identification of the -NH2 terminal amino acids
All of these
partial cleavage of the original polypeptide into smaller polypeptides

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FT IR Spectroscopy
In scanning electron microscopy

a specimen is fixed and then coated with thin layer of a heavy metal
a specimen is not fixed and then coated with thin layer of a heavy metal
a specimen is fixed and then coated with transition metal
None of these

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FT IR Spectroscopy
Why is it advantageous to record many FID signals from the same sample and then add them together?

To remove inaccuracies caused by fluctuations in the applied magnetic field
To increase sensitivity
None of these
To ensure that all target nuclei in the sample have been excited

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